Spoiler alert: there isn't any universal ‘greatest metal detector for gold’. (Even though the GPZ 7000 is close for anyone of you who can pay for a detector that’s a similar cost as a vehicle). Minelab’s GPX 6000 metal detector is created by the entire world leader in gold detection https://www.navacool.com/forum/topic/279152/metal-detector-tricks-for-coin-collectors